New Delhi, June 24 -- Three massive tunnel boring machines (TBMs), crucial for building the underground stretch of India's Mumbai-Ahmedabad bullet train, are currently stuck at a Chinese port, raising concerns over potential delays in the high-profile Rs.1.08 lakh crore infrastructure project, according to an Economic Times report.

Two of the machines were scheduled to reach India by October 2024, while the third was expected earlier this year.

However, clearance from Chinese authorities has not come through yet, and no official reason has been provided for the delay.

The issue involves not just the TBMs but also vital components needed for ongoing civil works, with particular concern over potential delays to the undersea tunnel segmen...